申请人:Burroughs Wellcome Co.
公开号:US05194450A1
公开(公告)日:1993-03-16
The present invention is concerned with compounds of formula (I) ##STR1## wherein R.sup.1 is hydrogen or C.sub.1-4 alkoxy; R.sub.2 is carbonyl, hydroxymethylene, or methylene; and R.sub.3 is hydrogen or hydroxy; and salts thereof, provided that when R.sub.1 is hydrogen and R.sub.2 is carbonyl, R.sub.3 is not hydroxy, with processes for preparing same and with their use in medicine for the treatment of hypertension.
本发明涉及公式(I)的化合物##STR1##其中,R.sup.1为氢或C.sub.1-4烷氧基;R.sub.2为羰基,羟甲基或亚甲基;R.sub.3为氢或羟基;以及它们的盐,但当R.sub.1为氢且R.sub.2为羰基时,R.sub.3不是羟基。本发明还涉及制备这些化合物的方法以及它们在医药上治疗高血压的用途。